• Korean Journal of Ecology and Environment
• /
• v.41 no.1
• /
• pp.90-97
• /
• 2008

The aim of this research was to detect and observe delivering generation effects from $F_0$ generation exposed to 4-nonylphenol 4NP) to $F_1$ generation on Tigriopus japonicus. The nauplius survival rate of $F_1$ from $F_0$ exposed to low 4NP concentration was significantly lower than other concentrations. Among the developmental process, copepodite first emergence day (CE) and adult male first emergence day (ME) on $F_1$ were accelerated relatively high concentration conditions. The sex ratio of $F_1$ was different between control group and treatment groups for 1, 10 and $30{\mu}g\;L^{-1}$ 4NP. The fecundity of $F_1$ was not significantly affected (except, $0.1{\mu}g\;L^{-1}$ 4NP). When 4NP concentrations were increased, first brooding day (FB) of F 1 was generally delayed. The length, width, and biomass of $F_1$ adult female were smaller than control group. In addition, the width and biomass of adult male were narrower or smaller than control group.